3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $points = [ [0, -1], [-2, 3], [4, 0], [3, 1], [5, 2], [0, 1], ]; $max_closest = []; foreach ($points as $i => list($ax, $ay)) { $min_dist = INF; $dists = []; foreach ($points as $j => list($bx, $by)) { if ($i == $j) { continue; } $dists[$j] = $sq_dist = ($bx - $ax) * ($bx - $ax) + ($by - $ay) * ($by - $ay); if ($sq_dist < $min_dist) { $min_dist = $sq_dist; } } // select closest points foreach (array_keys($dists, $min_dist, true) as $key) { print_r($points[$key]); // print point // keep track of points that were closest if (isset($max_closest[$key])) { ++$max_closest[$key]; } else { $max_closest[$key] = 1; } } } rsort($max_closest); foreach (array_keys($max_closest, $max_closest[0], true) as $key) { print_r($points[$key]); // print point }
Output for 5.5.24 - 7.1.0
Array ( [0] => 0 [1] => 1 ) Array ( [0] => 0 [1] => 1 ) Array ( [0] => 3 [1] => 1 ) Array ( [0] => 4 [1] => 0 ) Array ( [0] => 4 [1] => 0 ) Array ( [0] => 3 [1] => 1 ) Array ( [0] => 0 [1] => -1 ) Array ( [0] => 0 [1] => -1 ) Array ( [0] => -2 [1] => 3 ) Array ( [0] => 4 [1] => 0 )
Output for 5.4.0 - 5.4.45
Parse error: syntax error, unexpected 'list' (T_LIST) in /in/2Z7cj on line 14
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/2Z7cj on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/2Z7cj on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/2Z7cj on line 3
Process exited with code 255.